EP3306005A1 - Strut with non-structural infill - Google Patents
Strut with non-structural infill Download PDFInfo
- Publication number
- EP3306005A1 EP3306005A1 EP17194567.8A EP17194567A EP3306005A1 EP 3306005 A1 EP3306005 A1 EP 3306005A1 EP 17194567 A EP17194567 A EP 17194567A EP 3306005 A1 EP3306005 A1 EP 3306005A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parallel
- elongated
- spaced
- upper portion
- sidewalls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/065—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section
- E04B9/067—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section with inverted T-shaped cross-section
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/064—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising extruded supporting beams
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/12—Connections between non-parallel members of the supporting construction
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/12—Connections between non-parallel members of the supporting construction
- E04B9/127—Connections between non-parallel members of the supporting construction one member being discontinuous and abutting against the other member
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/18—Means for suspending the supporting construction
- E04B9/183—Means for suspending the supporting construction having a lower side adapted to be connected to a channel of the supporting construction
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/18—Means for suspending the supporting construction
- E04B9/20—Means for suspending the supporting construction adjustable
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
- E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
- E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
- E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
- E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/046—L- or T-shaped
Definitions
- This invention relates to ceiling grids, comprised of intersecting and perpendicular rows of elongated struts or members, that are attached to and suspended from ceilings of rooms and other building spaces, such as office spaces, storage areas, and data centers, to function as the framework for directly and/or indirectly supporting other structural members and room or building accessories.
- this invention relates to elongated struts or members, both structural and non-structural, that can be used in such a ceiling grid.
- Ceiling grids comprised of intersecting and perpendicular rows of elongated struts or members, both structural and non-structural struts or members, have been in use for decades. Those ceiling grids are usually directly attached to and suspended from the structure comprising the ceiling of a room or other building space, such as a concrete slab. The elongated structural struts or members of those ceiling grids directly or indirectly support other structural members and room or building accessories, such as light fixtures, HVAC conduits, sprinkler systems, etc., in the rooms or other building spaces in which they are installed.
- the ceiling grids include elongated structural struts or members that have (1) the desired load capacity and (2) an architectural or aesthetic finish when viewed from underneath the ceiling grid.
- elongated structural struts or members that have (1) the desired load capacity and (2) an architectural or aesthetic finish when viewed from underneath the ceiling grid.
- a variety of other structural members and room or building accessories can be attached to or otherwise supported by the elongated structural struts or members at any location along the elongated structural struts or members.
- elongated structural struts or members for ceiling grids have been developed that have (1) the desired load bearing capacity, (2) an architectural or aesthetic appearance when viewed from underneath the ceiling grid, and (3) the capability that other structural members and room or building accessories can be attached to the elongated structural struts or members at any location along the struts or members, there is always a need for elongated structural struts or members for ceiling grids with improved load bearing capacity and/or aesthetic appearance, and with the capability that other structural struts or members and room or building accessories can be attached to the elongated structural struts or members at any location along the struts or members.
- An elongated structural ceiling grid member may include an open-ended upper portion formed by a floor and a first set of parallel and spaced sidewalls extending from and substantially perpendicular to the floor.
- Each of the first set of parallel and spaced sidewalls may include a lower flat wall section and an upper section that is continuous with the lower flat wall section and extends towards the other of the first set of parallel and spaced sidewalls.
- the upper-ended upper portion may have a first opening (1) opposite the floor and (2) defined by the upper sections of the first set of parallel and spaced sidewalls.
- the elongated structural ceiling grid member of this embodiment may also include an open-ended lower portion formed by a ceiling and a second set of parallel and spaced sidewalls extending from and substantially perpendicular to the ceiling.
- Each of the second set of parallel and spaced sidewalls may include an upper flat wall section and a lower section that is continuous with the upper flat wall section and extends towards the other of the second set of parallel spaced sidewalls.
- the open-ended lower portion may have a second opening (1) opposite the ceiling and the first opening and (2) defined by the second set of parallel and spaced sidewalls.
- the elongated structural ceiling grid member of this embodiment may also include first and second flanges.
- the open-ended upper portion, the open-ended lower portion and the first and second flanges may have longitudinal axes that are substantially parallel to the longitudinal axis of the elongated structural ceiling grid member.
- the floor and ceiling may be integral.
- the first flange may be attached to the lower section of one of the second set of parallel and spaced sidewalls and extend substantially perpendicular in the lateral direction to the upper flat wall section of that parallel and spaced sidewall.
- the second flange may be attached to the lower section of the other of the second set of parallel and spaced sidewalls and extend substantially perpendicular to the upper flat wall section of that parallel and spaced sidewall.
- the upper sections of the first set of parallel and spaced sidewalls may be hooks having free ends that are located in vertical planes between the vertical planes of the lower flat wall sections of the first set of parallel and spaced sidewalls.
- the lower sections of the second set of parallel and spaced sidewalls may be hooks that have free ends that are located in vertical planes between the vertical planes of the upper flat wall sections of the second set of parallel and spaced sidewalls.
- the first and second flanges may be elongated bars that extend laterally beyond and outside of the upper flat wall portions of the second set of parallel and spaced sidewalls.
- the lower flat wall portions of the first set of parallel and spaced sidewalls are in substantially the same planes as the upper flat wall portions of the second set of parallel and spaced sidewalls.
- FIGS 1 and 2 illustrate one embodiment of an elongated structural strut for ceiling grids of this invention, elongated structural strut 10.
- Elongated structural strut 10 has a longitudinal axis that extends the length of elongated structural strut 10.
- Elongated structural strut 10 includes upper portion 12, lower portion 14 and lower flanges 16 and 18.
- upper portion 12 and lower portion 14 are integral, and extruded from stock of the same material.
- upper portion 12 and lower portion 14 can be two or more separate components joined together by welding or any other well-known fastening method/mechanism.
- Upper portion 12 includes floor 20 and sidewalls 22 and 24, which, in this embodiment of the elongated structural struts of this invention, are integral. In other embodiments of the elongated structural struts of this invention, the floor and sidewalls of the upper portion can be multiple components joined together.
- sidewalls 22 and 24 are parallel, mirror images that are substantially perpendicular to floor 20.
- sidewall 22 includes flat wall portion 23 and hook 26.
- Flat wall portion 23 begins at a longitudinal edge of floor 20 and extends upward.
- Hook 26 is formed by the upper portion of sidewall 22, above and continuous with flat wall portion 23.
- sidewall 24 includes flat wall portion 25 and hook 28.
- Flat wall portion 25 begins at the other longitudinal edge of floor 20 and extends upward.
- Hook 28 is formed by the upper portion of sidewall 24, above and continuous with flat wall portion 25.
- Floor 20 and sidewalls 22 and 24 define upper chamber 50 with opening 52 defined by hooks 26 and 28.
- hooks 26 and 28 The function of hooks 26 and 28 is to provide portions of sidewalls 22 and 24 that extend inwardly from flat wall portions 23 and 25, respectively, without closing opening 52. In use, hooks 26 and 28 can engage support members that are used to attach elongated structural strut 10 to a ceiling, as explained below. In other embodiments of the elongated structural struts of the invention, the upper portions of the sidewalls can have any shape that results in those portions extending inwardly, without closing the opening between the sidewalls.
- One advantage of hooks 26 and 28 over other "shapes" is that hooks 26 and 28 provide a "loop" to firmly engage a rod, flange, etc. that fits into and is received in the "loop.”
- the sidewalls of the upper portions of other embodiments of the elongated structural struts of this invention do not have to include flat wall portions, such as flat wall portions 23 and 25. Rather, the sidewalls can have any configuration and/or shape that results in the sidewalls partially defining a chamber between them.
- Lower portion 14 includes ceiling 30 and sidewalls 32 and 34, which, in this embodiment are integral.
- the ceiling and sidewalls of the lower portion can be multiple components joined together.
- sidewalls 32 and 34 are parallel, mirror images that are substantially perpendicular to ceiling 30.
- sidewall 32 includes flat wall portion 33 and hook 36.
- Flat wall portion 33 begins at a longitudinal edge of ceiling 30 and extends downward.
- Hook 36 is formed by the lower portion of sidewall 32, below and continuous with flat wall portion 33.
- sidewall 34 includes flat wall portion 35 and hook 38.
- Flat wall portion 35 begins at the other longitudinal edge of ceiling 30 and extends downward.
- Hook 38 is formed by the lower portion of sidewall 34, below and continuous with flat wall portion 35.
- Ceiling 30 and sidewalls 32 and 34 define lower chamber 54 with opening 56 defined by hooks 36 and 38 (and the innermost ends of flanges 16 and 18).
- hooks 36 and 38 The function of hooks 36 and 38 is to provide portions of sidewalls 32 and 34 that extend inwardly from flat wall portions 33 and 35, respectively, without closing opening 56.
- hooks 36 and 38 can engage or otherwise support other structural members, room and building accessories, apparatus to support room and building accessories, etc.
- the lower portions of the sidewalls can have any shape that results in those portions extending inwardly, without closing the opening between the sidewalls.
- one advantage of hooks 36 and 38 over other "shapes” is that hooks 36 and 38 provide a "loop" to firmly engage a rod, flange, etc. that fits into and is received in the "loop.”
- the sidewalls of the lower portions of other embodiments of the elongated structural struts of this invention do not have to include flat wall portions, such as flat wall portions 33 and 35. Rather, the sidewalls can have any configuration and/or shape that results in the sidewalls partially defining a chamber between them.
- flat wall portions 23 and 33 of sidewalls 22 and 32 are in substantially the same planes and flat wall portions 25 and 35 of sidewalls 24 and 34 are in substantially the same planes.
- Flange 16 is attached to hook 36 of sidewall 32 by spot welds, such as spot welds 40, as shown in Figure 2 .
- Flange 16 is oriented substantially perpendicular to flat wall portion 33 of sidewall 32 in the lateral direction and abuts sidewall 32 at the apex of hook 36.
- Flange 16 extends laterally beyond and outside of flat wall portion 33 to provide a surface to support other structural members, room and building accessories, etc.
- the inner surface of flange 16 is in substantially the same plane as the innermost surface of hook 36.
- flange 18 is attached to hook 38 of sidewall 34 by spot welds 42, as shown in Figures 1 and 2 .
- Flange 18 is oriented substantially perpendicular to flat wall portion 35 of sidewall 34 in the lateral direction and abuts sidewall 34 at the apex of hook 38.
- Flange 18 extends laterally beyond and outside of flat wall portion 35 to provide a surface to support other structural members, room and building accessories, etc.
- the inner surface of flange 18 is in substantially the same plane as the innermost surface of hook 38.
- flanges 16 and 18 are elongated bars attached to lower portion 14, in other embodiments of the elongated structural struts of this invention, flanges 16 and 18 can be integral with lower portion 14. Also, in yet other embodiments of the elongated structural struts of this invention, flanges 16 and 18 can have a shape other than an elongated bar, as long as they include a portion that can support other structural members and room and building accessories such as light fixtures, HVAC conduits, piping, etc.
- each of upper portion 12, lower portion 14 and flanges 16 and 18 has a longitudinal axis that is substantially parallel to the longitudinal axis of elongated structural strut 10.
- Figure 3 illustrates four of the elongated structural strut for ceiling grids illustrated in Figures 1 and 2 and described above, elongated structural struts 10 a , 10 b , 10 c and 10 d , connected at one of their ends to form intersecting and perpendicular rows of the struts.
- Elongated structural struts 10 a , 10 b , 10 c and 10 d are joined by connector assembly 44, which includes wing member 46 and U-shaped connector 48.
- Wing member 46 is a flat member that includes center portion 59 and integral wings 58 a , 58 b , 58 c and 58 d that extend outward from center portion 59. Wings 58 a , 58 b , 58 c and 58 d are oriented at 90° from each other. Wings 58 a , 58 b , 58 c and 58 d are affixed to elongated structural struts 10 a , 10 b , 10 c and 10 d , respectively, as described below.
- U-shaped connector 48 is a continuous member formed of top portion 60, sidewalls 62 and 64 and mating flanges 66 and 68.
- Mating flange 66 mates with wing 58 d and is affixed to elongated structural strut 10 d with wing 58 d .
- Mating flange 68 mates with wing 58 b and is affixed to elongated structural strut 10 b with wing 58 b .
- wing member 46 and U-shaped connector 48 are separate components, in other embodiments, they can be integral.
- the connector assembly can be of any shape or configuration as long as it has surfaces that can be attached to four elongated structural struts that are arranged to form intersecting and perpendicular rows of the struts and a surface that enables it to be connected to a ceiling rod assembly, as described below, or to any other apparatus employed to attach and suspend the connector assembly to and from a ceiling.
- wing 58 a is attached to elongated structural strut 10 a by bolt 70 a and retaining block 72 a
- wing 58 b and mating flange 68 are attached to elongated structural strut 10 b by bolt 70 b and retaining block 72 b
- wing 58 c is attached to elongated structural strut 10 c by bolt 70 c and retaining block 72 c
- wing 58 d and mating flange 66 are attached to elongated structural strut 10 d by bolt 70 d and retaining block 72 d , respectively.
- Bolts 70 a , 70 b , 70 c and 70 d have external threads that threadedly engage internal threads of holes in retaining blocks 72 a , 72 b , 72 c and 72 d , respectively.
- the shafts of bolts 70 a , 70 b , 70 c and 70 d are received in holes in wings 58 a , 58 b , 58 c and 58 d , respectively.
- the shafts of bolts 70 b and 70 d are also received in holes in mating flanges 68 and 66, respectively.
- Retaining blocks 72 a , 72 b , 72 c and 72 d have a width less than, but a length greater than, the width of openings 52 a , 52 b , 52 c and 52 d of upper portions 12 a , 12 b , 12 c and 12 d of elongated structural struts 10 a , 10 b , 10 c and 10 d , respectively, for reasons described below.
- Connector assembly 44 can be attached to elongated structural struts 10 a , 10 b , 10 c and 10 d in at least the following ways.
- FIGS. 9A-9D One way is illustrated, in part, by Figures 9A-9D .
- bolt 70 a and retaining block 72 a are loosely connected to wing 58 a
- bolt 70 b and retaining block 72 b are loosely connected to wing 58 b and mating flange 68
- bolt 70 c and retaining block 72 c are loosely connected to wing 58 c
- bolt 70 d and retaining block 72 d are loosely connected to wing 58 d and mating flange 66 (the loose connection of bolt 70 b and retaining block 72 b to wing 58 b and mating flange 68 is illustrated in Figure 9A ).
- Connector assembly 44 is then positioned above elongated structural struts 10 a , 10 b , 10 c and 10 d , with wing 58 a located above elongated structural strut 10 a , wing 58 b and mating flange 68 located above elongated structural strut 10 b , wing 58 c located above elongated structural strut 10 c , and wing 58 d and mating flange 66 located above elongated structural strut 10 d .
- elongated structural struts 10 a , 10 b , 10 c and 10 d are positioned below connector assembly 44, with elongated structural strut 10 a located below wing 58 a , elongated structural strut 10 b below wing 58 b and mating flange 68, elongated structural strut 10 c below wing 58 c , and elongated structural strut 10 d below wing 58 d and mating flange 66.
- retaining blocks 72 a , 72 b , 72 c and 72 d are positioned relative to openings 52 a , 52 b , 52 c and 52 d such that the widths of retaining blocks 72 a , 72 b , 72 c and 72 d are substantially aligned with openings 52 a , 52 b , 52 c and 52 d , so that retaining blocks 72 a , 72 b , 72 c and 72 d can fit through openings 52 a , 52 b , 52 c and 52 d , respectively.
- the alignment of retaining block 72 b with opening 52 b is illustrated in Figure 9A .
- connector assembly 44 is lowered, or elongated structural struts 10 a , 10 b , 10 c and 10 d are raised (if connector assembly 44 is already installed), until retaining blocks 72 a , 72 b , 72 c and 72 d pass through openings 52 a , 52 b , 52 c and 52 d and are received in chambers 50 a , 50 b , 50 c and 50 d , respectively.
- the width of retaining blocks 72 a , 72 b , 72 c and 72 d is less than the widths of openings 52 a , 52 b , 52 c and 52 d , respectively.
- the passing of retaining block 72 b through opening 52 b into chamber 50 b is illustrated in Figure 9B .
- retaining blocks 72 a , 72 b , 72 c and 72 d pass below the free end of hooks 26 a and 28 a , hooks 26 b and 28 b , hooks 26 c and 28 c , and hooks 26 d and 28 d , respectively.
- retaining blocks 72 a , 72 b , 72 c and 72 d are rotated such that portions of retaining blocks 72 a , 72 b , 72 c and 72 d overlap the free ends of those hooks.
- the rotation of retaining block 72 b is illustrated in Figure 9C .
- Bolts 70 a , 70 b , 70 c and 70 d are then tightened until retaining blocks 72 a , 72 b , 72 c and 72 d firmly engage the free ends of hooks 26 a and 28 a , hooks 26 b and 28 b , hooks 26 c and 28 c , and hooks 26 d and 28 d , respectively.
- the tightening of bolt 70 b and engagement of retaining block 72 b with the free ends of hooks 26 b and 28 b are illustrated in Figure 9D .
- Another way of connecting connector assembly 44 to elongated structural struts 10 a , 10 b , 10 c and 10 d i.e., connecting wing 58 a to elongated structural strut 10 a by bolt 70 a and retaining block 72 a , wing 58 b and mating flange 68 to elongated structural strut 10 b by bolt 70 b and retaining block 72 b , wing 58 c to elongated structural strut 10 c by bolt 70 c and retaining block 72 c , and wing 58 d and mating flange 66 to elongated structural strut 10 d by bolt 70 d and retaining block 72 d , is as follows.
- Connector assembly 44 is placed on elongated structural struts 10 a , 10 b , 10 c and 10 d such that wing 58 a is above elongated structural strut 10 a , wing 58 b and mating flange 68 are above elongated structural strut 10 b , wing 58 c is above elongated structural strut 10 c , and wing 58 d and mating flange 66 are above elongated structural strut 10 d , but without bolts 70 a , 70 b , 70 c and 70 d and retaining blocks 72 a , 72 b , 72 c and 72 d attached thereto.
- elongated structural struts 10 a , 10 b , 10 c and 10 d are positioned below connector assembly 44 such that elongated structural strut 10 a is below wing 58 a , elongated structural strut 10 b is below wing 58 b and mating flange 68, elongated structural strut 10 c is below wing 58 c , and elongated structural strut 10 d is below wing 58 d and mating flange 66, but without bolts 70 a , 70 b , 70 c and 70 d and retaining blocks 72 a , 72 b , 72 c and 72 d attached thereto.
- bolts 70 a , 70 b , 70 c and 70 d are inserted through the holes in wing 58 a , wing 58 b and mating flange 68, wing 58 c , and wing 58 d and mating flange 66, respectively.
- the lower ends of bolts 70 a , 70 b , 70 c and 70 d extend into upper chambers 50 a , 50 b , 50 c and 50 d through openings 52 a , 52 b , 52 c and 52 d , respectively.
- Retaining blocks 72 a , 72 b , 72 c and 72 d are then positioned on the threaded ends of bolts 70 a , 70 b , 70 c and 70 d , respectively, such that areas of retaining blocks 72 a , 72 b , 72 c and 72 d overlap with hooks 26 a and 28 a , hooks 26 b and 28 b , hooks 26 c and 28 c , and hooks 26 d and 28 d , respectively.
- Bolts 70 a , 70 b , 70 c and 70 d are then tightened until retaining blocks 72 a , 72 b , 72 c and 72 d firmly engage hooks 26 a and 28 a , hooks 26 b and 28 b , hooks 26 c and 28 c , and hooks 26 d and 28 d , respectively.
- connector assembly 44 to elongated structural struts 10 a , 10 b , 10 c and 10 d , i.e., connecting wing 58 a to elongated structural strut 10 a by bolt 70 a and retaining block 72 a , wing 58 b and mating flange 68 to elongated structural strut 10 b by bolt 70 b and retaining block 72 b , wing 58 c to elongated structural strut 10 c by bolt 70 c and retaining block 72 c , and wing 58 d and mating flange 66 to elongated structural strut 10 d by bolt 70 d and retaining block 72 d , is as follows.
- Retaining blocks 72 a , 72 b , 72 c and 72 d are positioned in upper chambers 50 a , 50 b , 50 c and 50 d such that portions of retaining blocks 72 a , 72 b , 72 c and 72 d overlap with hooks 26 a and 28 a , hooks 26 b and 28 b , hooks 26 c and 28 c and hooks 26 d and 28 d , respectively.
- Springs such as springs 57 a , 57 b , 57 c and 57 d in Figure 3 , are positioned in upper chambers 50 a , 50 b , 50 c and 50 d between retaining blocks 72 a , 72 b , 72 c and 72 d and floors 20 a , 20 b , 20 c and 20 d of upper portions 12 a , 12 b , 12 c and 12 d , respectively, to "push" retaining blocks 72 a , 72 b , 72 c and 72 d in fixed positions against the free ends of hooks 26 a and 28 a , hooks 26 b and 28 b , hooks 26 c and 28 c and hooks 26 d and 28 d , respectively.
- Bolts 70 a , 70 b , 70 c and 70 d are then inserted through the holes in wing 46 a , wing 46 b and mating portion 68, wing 46 c and wing 46 d and mating portion 66, and tightened to firmly engage retaining blocks 72 a , 72 b , 72 c and 72 d against the free ends of hooks 26 a and 28 a , hooks 26 b and 28 b , hooks 26 c and 28 c , and hooks 26 d and 28 d , respectively.
- Connector assembly 44 can be attached to and suspended from the structure comprising a ceiling of a room or other building area, such as a concrete slab, as follows.
- a ceiling rod assembly such as ceiling rod assembly 61 in Figure 3
- the other end of ceiling rod assembly 61 is attached to top portion 60 of U-shaped connector 48.
- Figure 4 illustrates three of the elongated structural strut for ceiling grids illustrated in Figures 1 and 2 and described above, elongated structural struts 10', 10" and 10''', joined at one of their ends to form a T-intersection of a ceiling grid (elongated structural strut 10''' is not shown in Figure 4 , but is behind and axially in line with elongated structural strut 10").
- Elongated structural struts 10', 10" and 10''' are joined by connector assembly 44', which includes T-shaped member 46' and U-shaped connector 48'.
- T-shaped member 46' is a flat member that includes center portion 59' (not shown) and integral wings 58', 58" and 58''' that (1) extend outward from center portion 59' and (2) are oriented 90° to each other to form a "T" (wing 58''' is not shown in Figure 4 , but is behind and in the same planes as wing 58").
- U-shaped connector 48' is a continuous member formed of top portion 60', sidewalls 62' and 64' and mating flanges 66' and 68' (sidewall 64' and mating flange 68' are not shown in Figure 4 ).
- T-shaped member 46' and U-shaped connector 48' are separate components, in other embodiments, they can be integral. Also, in other embodiments, the connector assembly can be of any shape or configuration as long as it has surfaces that can be attached to the three elongated structural struts forming the T-intersection and a surface that enables it to be connected to a ceiling rod assembly, or to any other apparatus employed to attach and suspend the ceiling grid to and from a ceiling.
- Connector assembly 44' can be attached to elongated structural struts 10', 10" and 10''' in the same ways that connector assembly 44 can be attached to elongated structural struts 10 a , 10 b , 10 c and 10 d .
- wing 58' is attached to elongated structural strut 10' by bolt 70' and retaining block 72'
- wing 58" and mating flange 66' are attached to elongated structural strut 10" by bolt 70" and retaining block 72
- wing 58''' and mating flange 68' are attached to elongated structural strut 10''' by bolt 70''' and retaining block 72''' (bolt 70''' and retaining block 72''' are not shown in Figure 4 ).
- bolts 70', 70" and 70''' have external threads that threadedly engage internal threads of holes in retaining blocks 72', 72" and 72"', respectively.
- retaining blocks 72 a , 72 b , 72 c and 72 d retaining blocks 72', 72" and 72''' have a width less than, but a length greater than, the width of openings 52', 52" and 52''' of upper portions 12', 12" and 12''' of elongated structural struts 10', 10" and 10"', respectively.
- Connector assembly 44' can be attached to and suspended from ceiling structure by ceiling rod assembly 61' in the same manner that connector assembly 44 can be attached to and suspended from ceiling structure by ceiling rod assembly 61.
- a connector assembly other than connector assembly 44' can be used to join elongated structural struts 10', 10" and 10''' in the configuration of a T-intersection.
- Figure 10 illustrates two of the elongated structural strut for ceiling grids illustrated in Figures 1 and 2 and described above, elongated structural struts 10 x and 10 y , joined at one of their ends to form a corner of a ceiling grid.
- Elongated structural struts 10 x and 10 y are joined by L-shaped member 46 x .
- L-shaped member 46 x is a flat member that includes center portion 59 x and integral wings 58 x and 58 y that (1) extend outward from center portion 59 x and (2) are oriented 90° to each other to form an "L.”
- the member that joins the elongated structural struts can be of any shape or configuration as long as it has surfaces that can be attached to the two elongated structural struts forming the grid corner.
- L-shaped member 46 x can be attached to elongated structural struts 10 x and 10 y in the same ways that connector assembly 44 can be attached to elongated structural struts 10 a , 10 b , 10 c and 10 d .
- wing 58 x is attached to elongated structural strut 10 x by bolt 70 x and retaining block 72 x
- wing 58 y is attached to elongated structural strut 10 y by bolt 70 y and retaining block 72 y .
- bolts 70 x and 70 y have external threads that threadedly engage internal holes in retaining blocks 72 x and 72 y , respectively. Also, like retaining blocks 72 a , 72 b , 72 c and 72 d , retaining blocks 72 x and 72 y have a width less than, but a length greater than, the width of openings 52 x and 52 y of upper portions 12 x and 12 y of elongated structural struts 10 x and 10 y , respectively.
- retaining blocks 72 x and 72 y are received in upper chambers 50 x and 50 y of upper portions 12 x and 12 y of elongated structural struts 10 x and 10 y and firmly engage the free ends of hooks 26 x and 28 x and hooks 26 y and 28 y , respectively.
- Figures 5 and 6 illustrate one embodiment of a non-structural elongated member, non-structural elongated member 74, which can be used in a ceiling grid with the elongated structural struts of this invention.
- Non-structural elongated member 74 includes upper portion 76, web 78 and flange portion 80. While, in this embodiment of the invention, upper portion 76, web 78 and flange portion 80 are integral, in other embodiments, they can be comprised of two or more components, welded or otherwise fastened together.
- Upper portion 76 includes floor 81 and spaced and parallel sidewalls 82 and 84 that extend upward from the two longitudinal edges of floor 81 to form a U-shape with floor 81.
- Sidewall 82 includes threads 86 on its inner surface
- sidewall 84 includes threads 88 on its inner surface.
- Floor 81 and sidewalls 82 and 84 form or define threaded slot 77.
- Threads 86 and 88 are offset one half turn vertically from each other, as shown in Figure 6 . That is, each peak of thread 86 is diametrically opposed by a valley of thread 88, and each valley of thread 86 is diametrically opposed by a peak of thread 88.
- Flange portion 80 is oriented substantially perpendicular to web 78.
- the bottom surface of flange portion 80 is what is visible to occupants of the room or building space that includes a ceiling grid with one or more non-structural elongated members 74.
- Figure 7 illustrates a pair of the non-structural elongated member of Figures 5 and 6 , non-structural elongated members 74' and 74", attached on opposite sides of elongated structural strut 10, to form intersecting and perpendicular rows of the elongated structural struts and the non-structural elongated members.
- non-structural elongated member 74' is attached to one side of elongated structural strut 10 by connector 90
- non-structural elongated member 74" is attached to the opposite side of elongated structural strut 10 by connector 92.
- connectors 90 and 92 are L-shaped.
- the bottom arms of connectors 90 and 92 are attached to non-structural elongated members 74' and 74" by bolts 94 and 96 that threadedly engage threaded slots 77' and 77" of non-structural elongated members 74' and 74", respectively.
- the upper arms of L-shaped connectors 90 and 92 are attached to sidewalls 22 and 24 of upper portion 12 of elongated structural strut 10 by screws 98 and 100, respectively.
- the ends of flange portions 80' and 80" are recessed from the ends of upper portions 76' and 76" and webs 78' and 78", as shown in Figures 5 and 7 , so that the bottom surfaces of flange portions 80' and 80" of non-structural elongated members 74' and 74" and of flanges 16 and 18 of elongated structural strut 10 form a substantially flat surface.
- Figure 7 illustrates one way of connecting the elongated structural struts and the non-structural elongated members of this invention to form intersecting and perpendicular rows of those struts and members.
- the elongated structural struts and non-structural elongated members can be attached using different methods/apparatus that are sufficient to maintain the elongated structural struts and the non-structural elongated members in the desired relative positions.
- Figure 8 discloses a partial ceiling grid comprised of a plurality of elongated structural struts 10 and non-structural elongated members 74.
- the grid is attached to and suspended from a ceiling by a plurality of ceiling rod assemblies 61.
- the present invention also relates to the following:
Abstract
An elongated structural ceiling grid member (10) including an open-ended upper portion (12), an open-ended lower portion (14), and first and second flanges (16, 18). The open-ended upper section is formed by a floor (20) and a first set of second parallel and spaced sidewalls (22, 24) extending from and substantially perpendicular to the floor (20). The open-ended upper portion (12) has an opening (52) opposite the floor (20) and defined by the first and second parallel and spaced sidewalls (22, 24). The open-ended lower portion (14) is formed by a ceiling (30) and a second set of parallel and spaced sidewalls (32, 34) that extend from and are substantially perpendicular to the ceiling (30). The open-ended lower portion (14) has a second opening (56) opposite the ceiling (30) and defined by the third and fourth parallel and spaced sidewalls (32, 34). The first flange (16) is attached to and extends perpendicular to the third parallel and spaced sidewall (32) and the second flange (18) is attached to and extends perpendicular to the fourth parallel and spaced sidewall (34).
Description
- This invention relates to ceiling grids, comprised of intersecting and perpendicular rows of elongated struts or members, that are attached to and suspended from ceilings of rooms and other building spaces, such as office spaces, storage areas, and data centers, to function as the framework for directly and/or indirectly supporting other structural members and room or building accessories. In particular, this invention relates to elongated struts or members, both structural and non-structural, that can be used in such a ceiling grid.
- Ceiling grids comprised of intersecting and perpendicular rows of elongated struts or members, both structural and non-structural struts or members, have been in use for decades. Those ceiling grids are usually directly attached to and suspended from the structure comprising the ceiling of a room or other building space, such as a concrete slab. The elongated structural struts or members of those ceiling grids directly or indirectly support other structural members and room or building accessories, such as light fixtures, HVAC conduits, sprinkler systems, etc., in the rooms or other building spaces in which they are installed.
- In certain environments, it is desirable that the ceiling grids include elongated structural struts or members that have (1) the desired load capacity and (2) an architectural or aesthetic finish when viewed from underneath the ceiling grid. In addition, it is often desirable that a variety of other structural members and room or building accessories can be attached to or otherwise supported by the elongated structural struts or members at any location along the elongated structural struts or members.
- While some elongated structural struts or members for ceiling grids have been developed that have (1) the desired load bearing capacity, (2) an architectural or aesthetic appearance when viewed from underneath the ceiling grid, and (3) the capability that other structural members and room or building accessories can be attached to the elongated structural struts or members at any location along the struts or members, there is always a need for elongated structural struts or members for ceiling grids with improved load bearing capacity and/or aesthetic appearance, and with the capability that other structural struts or members and room or building accessories can be attached to the elongated structural struts or members at any location along the struts or members.
- In addition, there is always a need for improved elongated non-structural struts or members for ceiling grids that can be readily and securely attached to the elongated structural struts or members of those grids and have an architectural or aesthetic finish when viewed from underneath the grids.
- This invention addresses those needs, as well as other needs that are readily apparent to those of skill in the art.
- An elongated structural ceiling grid member according to one embodiment of this invention may include an open-ended upper portion formed by a floor and a first set of parallel and spaced sidewalls extending from and substantially perpendicular to the floor. Each of the first set of parallel and spaced sidewalls may include a lower flat wall section and an upper section that is continuous with the lower flat wall section and extends towards the other of the first set of parallel and spaced sidewalls. The upper-ended upper portion may have a first opening (1) opposite the floor and (2) defined by the upper sections of the first set of parallel and spaced sidewalls. The elongated structural ceiling grid member of this embodiment may also include an open-ended lower portion formed by a ceiling and a second set of parallel and spaced sidewalls extending from and substantially perpendicular to the ceiling. Each of the second set of parallel and spaced sidewalls may include an upper flat wall section and a lower section that is continuous with the upper flat wall section and extends towards the other of the second set of parallel spaced sidewalls. The open-ended lower portion may have a second opening (1) opposite the ceiling and the first opening and (2) defined by the second set of parallel and spaced sidewalls. The elongated structural ceiling grid member of this embodiment may also include first and second flanges. The open-ended upper portion, the open-ended lower portion and the first and second flanges may have longitudinal axes that are substantially parallel to the longitudinal axis of the elongated structural ceiling grid member. The floor and ceiling may be integral. The first flange may be attached to the lower section of one of the second set of parallel and spaced sidewalls and extend substantially perpendicular in the lateral direction to the upper flat wall section of that parallel and spaced sidewall. The second flange may be attached to the lower section of the other of the second set of parallel and spaced sidewalls and extend substantially perpendicular to the upper flat wall section of that parallel and spaced sidewall.
- In some embodiments of the elongated structural ceiling grid members of this invention, the upper sections of the first set of parallel and spaced sidewalls may be hooks having free ends that are located in vertical planes between the vertical planes of the lower flat wall sections of the first set of parallel and spaced sidewalls.
- In other embodiments of the elongated structural ceiling grid members of this invention, the lower sections of the second set of parallel and spaced sidewalls may be hooks that have free ends that are located in vertical planes between the vertical planes of the upper flat wall sections of the second set of parallel and spaced sidewalls.
- In yet other embodiments of the elongated structural ceiling grid members of this invention, the first and second flanges may be elongated bars that extend laterally beyond and outside of the upper flat wall portions of the second set of parallel and spaced sidewalls.
- In further embodiments of the elongated structural ceiling grid members of this invention, the lower flat wall portions of the first set of parallel and spaced sidewalls are in substantially the same planes as the upper flat wall portions of the second set of parallel and spaced sidewalls.
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-
Figure 1 is a top perspective view of an elongated structural strut for ceiling grids according to one embodiment of this invention. -
Figure 2 is an elevation view of the elongated structural strut for ceiling grids ofFigure 1 . -
Figure 3 is a top perspective view, partially sectionalized and partially in phantom for clarity, of four of the elongated structural strut for ceiling grids illustrated inFigures 1 and2 , joined by a connector to form intersecting and perpendicular rows of the struts. -
Figure 4 is an elevation view of three of the elongated structural strut for ceiling grids illustrated inFigures 1 and2 , joined by a connector to form a T-intersection of the struts. -
Figure 5 is a top perspective view of an elongated non-structural strut for ceiling grids according to one embodiment of this invention. -
Figure 6 is an elevation view of the elongated non-structural strut for ceiling grids ofFigure 5 . -
Figure 7 is a top perspective view of two of the elongated non-structural strut ofFigures 5 and 6 attached to an elongated structural strut ofFigures 1 and2 , to form an intersection of perpendicular rows of the elongated non-structural struts and the elongated structural struts. -
Figure 8 is a top perspective view of a ceiling grid comprised of a plurality of the elongated structural strut for ceiling grids ofFigures 1 and2 and a plurality of the elongated non-structural strut ofFigures 5 and 6 . -
Figures 9A, 9B ,9C and 9D are a series of schematic views illustrating how the connector ofFigure 3 can be attached to the elongated structural strut for ceiling grids ofFigures 1 and2 . -
Figure 10 is a top perspective view, partially in phantom for clarity, of two of the elongated structural strut for ceiling grids illustrated inFigures 1 and2 , joined by a connector to form a corner of a ceiling grid. - As stated,
Figures 1 and2 illustrate one embodiment of an elongated structural strut for ceiling grids of this invention, elongatedstructural strut 10. Elongatedstructural strut 10 has a longitudinal axis that extends the length of elongatedstructural strut 10. - Elongated
structural strut 10 includesupper portion 12,lower portion 14 andlower flanges upper portion 12 andlower portion 14 are integral, and extruded from stock of the same material. In other embodiments of the elongated structural struts of this invention,upper portion 12 andlower portion 14 can be two or more separate components joined together by welding or any other well-known fastening method/mechanism. -
Upper portion 12 includesfloor 20 andsidewalls - In this embodiment of the elongated structural struts of the invention,
sidewalls floor 20. - Also, in this embodiment of the elongated structural struts of the invention,
sidewall 22 includesflat wall portion 23 andhook 26.Flat wall portion 23 begins at a longitudinal edge offloor 20 and extends upward. Hook 26 is formed by the upper portion ofsidewall 22, above and continuous withflat wall portion 23. - Similarly, in this embodiment of the elongated structural struts of the invention,
sidewall 24 includesflat wall portion 25 andhook 28.Flat wall portion 25 begins at the other longitudinal edge offloor 20 and extends upward. Hook 28 is formed by the upper portion ofsidewall 24, above and continuous withflat wall portion 25. -
Floor 20 andsidewalls upper chamber 50 with opening 52 defined byhooks - The function of
hooks sidewalls flat wall portions hooks structural strut 10 to a ceiling, as explained below. In other embodiments of the elongated structural struts of the invention, the upper portions of the sidewalls can have any shape that results in those portions extending inwardly, without closing the opening between the sidewalls. One advantage ofhooks hooks - Also, the sidewalls of the upper portions of other embodiments of the elongated structural struts of this invention do not have to include flat wall portions, such as
flat wall portions -
Lower portion 14 includesceiling 30 andsidewalls - In this embodiment of the elongated structural struts of this invention,
sidewalls ceiling 30. - Also, in this embodiment of the elongated structural struts of this invention,
sidewall 32 includesflat wall portion 33 andhook 36.Flat wall portion 33 begins at a longitudinal edge ofceiling 30 and extends downward.Hook 36 is formed by the lower portion ofsidewall 32, below and continuous withflat wall portion 33. - Similarly, in this embodiment of the elongated structural struts of the invention,
sidewall 34 includesflat wall portion 35 andhook 38.Flat wall portion 35 begins at the other longitudinal edge ofceiling 30 and extends downward.Hook 38 is formed by the lower portion ofsidewall 34, below and continuous withflat wall portion 35. -
Ceiling 30 andsidewalls lower chamber 54 with opening 56 defined byhooks 36 and 38 (and the innermost ends offlanges 16 and 18). - The function of
hooks sidewalls flat wall portions opening 56. In use, hooks 36 and 38 can engage or otherwise support other structural members, room and building accessories, apparatus to support room and building accessories, etc. In other embodiments of the elongated structural struts of this invention, the lower portions of the sidewalls can have any shape that results in those portions extending inwardly, without closing the opening between the sidewalls. As stated above, one advantage ofhooks - Also, the sidewalls of the lower portions of other embodiments of the elongated structural struts of this invention do not have to include flat wall portions, such as
flat wall portions - As can be determined from
Figures 1 and2 , in this embodiment of the elongated structural struts of the invention,flat wall portions sidewalls flat wall portions sidewalls -
Flange 16 is attached to hook 36 ofsidewall 32 by spot welds, such asspot welds 40, as shown inFigure 2 .Flange 16 is oriented substantially perpendicular toflat wall portion 33 ofsidewall 32 in the lateral direction and abutssidewall 32 at the apex ofhook 36.Flange 16 extends laterally beyond and outside offlat wall portion 33 to provide a surface to support other structural members, room and building accessories, etc. The inner surface offlange 16 is in substantially the same plane as the innermost surface ofhook 36. - Similarly,
flange 18 is attached to hook 38 ofsidewall 34 byspot welds 42, as shown inFigures 1 and2 .Flange 18 is oriented substantially perpendicular toflat wall portion 35 ofsidewall 34 in the lateral direction and abutssidewall 34 at the apex ofhook 38.Flange 18 extends laterally beyond and outside offlat wall portion 35 to provide a surface to support other structural members, room and building accessories, etc. The inner surface offlange 18 is in substantially the same plane as the innermost surface ofhook 38. - While, in this embodiment of the elongated structural struts of this invention,
flanges lower portion 14, in other embodiments of the elongated structural struts of this invention,flanges lower portion 14. Also, in yet other embodiments of the elongated structural struts of this invention,flanges - As can be determined from
Figures 1 and2 , each ofupper portion 12,lower portion 14 andflanges structural strut 10. - As stated,
Figure 3 illustrates four of the elongated structural strut for ceiling grids illustrated inFigures 1 and2 and described above, elongatedstructural struts structural struts connector assembly 44, which includeswing member 46 andU-shaped connector 48. -
Wing member 46 is a flat member that includescenter portion 59 andintegral wings center portion 59.Wings Wings structural struts -
U-shaped connector 48 is a continuous member formed oftop portion 60, sidewalls 62 and 64 andmating flanges Mating flange 66 mates withwing 58d and is affixed to elongatedstructural strut 10d withwing 58d.Mating flange 68 mates withwing 58b and is affixed to elongatedstructural strut 10b withwing 58b. - While, in this embodiment of the invention,
wing member 46 andU-shaped connector 48 are separate components, in other embodiments, they can be integral. Also, in other embodiments, the connector assembly can be of any shape or configuration as long as it has surfaces that can be attached to four elongated structural struts that are arranged to form intersecting and perpendicular rows of the struts and a surface that enables it to be connected to a ceiling rod assembly, as described below, or to any other apparatus employed to attach and suspend the connector assembly to and from a ceiling. - In this embodiment of the invention,
wing 58a is attached to elongatedstructural strut 10a bybolt 70a and retainingblock 72a,wing 58b andmating flange 68 are attached to elongatedstructural strut 10b bybolt 70b and retainingblock 72b,wing 58c is attached to elongatedstructural strut 10c bybolt 70c and retainingblock 72c, andwing 58d andmating flange 66 are attached to elongatedstructural strut 10d bybolt 70d and retainingblock 72d, respectively.Bolts blocks bolts wings bolts mating flanges openings upper portions structural struts -
Connector assembly 44 can be attached to elongatedstructural struts - One way is illustrated, in part, by
Figures 9A-9D . First, beforeconnector assembly 44 is placed on elongatedstructural struts bolt 70a and retainingblock 72a are loosely connected towing 58a,bolt 70b and retainingblock 72b are loosely connected towing 58b andmating flange 68,bolt 70c and retainingblock 72c are loosely connected towing 58c, andbolt 70d and retainingblock 72d are loosely connected towing 58d and mating flange 66 (the loose connection ofbolt 70b and retainingblock 72b towing 58b andmating flange 68 is illustrated inFigure 9A ).Connector assembly 44 is then positioned above elongatedstructural struts wing 58a located above elongatedstructural strut 10a,wing 58b andmating flange 68 located above elongatedstructural strut 10b,wing 58c located above elongatedstructural strut 10c, andwing 58d andmating flange 66 located above elongatedstructural strut 10d. Alternatively, ifconnector assembly 44 is already installed, elongatedstructural struts connector assembly 44, with elongatedstructural strut 10a located belowwing 58a, elongatedstructural strut 10b belowwing 58b andmating flange 68, elongatedstructural strut 10c belowwing 58c, and elongatedstructural strut 10d belowwing 58d andmating flange 66. - Either way, retaining
blocks openings blocks openings blocks openings block 72b withopening 52b is illustrated inFigure 9A . - Next,
connector assembly 44 is lowered, or elongatedstructural struts connector assembly 44 is already installed), until retainingblocks openings chambers blocks openings block 72b throughopening 52b intochamber 50b is illustrated inFigure 9B . - Once the top surfaces of retaining
blocks hooks blocks blocks block 72b is illustrated inFigure 9C . -
Bolts blocks hooks bolt 70b and engagement of retainingblock 72b with the free ends ofhooks Figure 9D . - Another way of connecting
connector assembly 44 to elongatedstructural struts wing 58a to elongatedstructural strut 10a bybolt 70a and retainingblock 72a,wing 58b andmating flange 68 to elongatedstructural strut 10b bybolt 70b and retainingblock 72b,wing 58c to elongatedstructural strut 10c bybolt 70c and retainingblock 72c, andwing 58d andmating flange 66 to elongatedstructural strut 10d bybolt 70d and retainingblock 72d, is as follows.Connector assembly 44 is placed on elongatedstructural struts wing 58a is above elongatedstructural strut 10a,wing 58b andmating flange 68 are above elongatedstructural strut 10b,wing 58c is above elongatedstructural strut 10c, andwing 58d andmating flange 66 are above elongatedstructural strut 10d, but withoutbolts blocks connector assembly 44 is already installed, elongatedstructural struts connector assembly 44 such that elongatedstructural strut 10a is belowwing 58a, elongatedstructural strut 10b is belowwing 58b andmating flange 68, elongatedstructural strut 10c is belowwing 58c, and elongatedstructural strut 10d is belowwing 58d andmating flange 66, but withoutbolts blocks - Once
connector assembly 44 and elongatedstructural struts bolts wing 58a,wing 58b andmating flange 68,wing 58c, andwing 58d andmating flange 66, respectively. The lower ends ofbolts upper chambers openings bolts blocks hooks Bolts blocks - Yet another way of connecting
connector assembly 44 to elongatedstructural struts wing 58a to elongatedstructural strut 10a bybolt 70a and retainingblock 72a,wing 58b andmating flange 68 to elongatedstructural strut 10b bybolt 70b and retainingblock 72b,wing 58c to elongatedstructural strut 10c bybolt 70c and retainingblock 72c, andwing 58d andmating flange 66 to elongatedstructural strut 10d bybolt 70d and retainingblock 72d, is as follows. Retaining blocks 72a, 72b, 72c and 72d are positioned inupper chambers blocks hooks Figure 3 , are positioned inupper chambers blocks floors upper portions hooks Bolts wing 46a,wing 46b andmating portion 68,wing 46c andwing 46d andmating portion 66, and tightened to firmly engage retainingblocks hooks -
Connector assembly 44 can be attached to and suspended from the structure comprising a ceiling of a room or other building area, such as a concrete slab, as follows. One end of a ceiling rod assembly, such asceiling rod assembly 61 inFigure 3 , is attached to the ceiling structure. The other end ofceiling rod assembly 61 is attached totop portion 60 ofU-shaped connector 48. - As stated,
Figure 4 illustrates three of the elongated structural strut for ceiling grids illustrated inFigures 1 and2 and described above, elongatedstructural struts 10', 10" and 10''', joined at one of their ends to form a T-intersection of a ceiling grid (elongated structural strut 10''' is not shown inFigure 4 , but is behind and axially in line with elongatedstructural strut 10"). Elongatedstructural struts 10', 10" and 10''' are joined by connector assembly 44', which includes T-shaped member 46' and U-shaped connector 48'. - T-shaped member 46' is a flat member that includes center portion 59' (not shown) and
integral wings 58', 58" and 58''' that (1) extend outward from center portion 59' and (2) are oriented 90° to each other to form a "T" (wing 58''' is not shown inFigure 4 , but is behind and in the same planes aswing 58"). - The same as
U-shaped connector 48, U-shaped connector 48' is a continuous member formed of top portion 60', sidewalls 62' and 64' and mating flanges 66' and 68' (sidewall 64' and mating flange 68' are not shown inFigure 4 ). - While in this embodiment of the invention, T-shaped member 46' and U-shaped connector 48' are separate components, in other embodiments, they can be integral. Also, in other embodiments, the connector assembly can be of any shape or configuration as long as it has surfaces that can be attached to the three elongated structural struts forming the T-intersection and a surface that enables it to be connected to a ceiling rod assembly, or to any other apparatus employed to attach and suspend the ceiling grid to and from a ceiling.
- Connector assembly 44' can be attached to elongated
structural struts 10', 10" and 10''' in the same ways thatconnector assembly 44 can be attached to elongatedstructural struts wing 58" and mating flange 66' are attached to elongatedstructural strut 10" bybolt 70" and retainingblock 72", and wing 58''' and mating flange 68' are attached to elongated structural strut 10''' by bolt 70''' and retaining block 72''' (bolt 70''' and retaining block 72''' are not shown inFigure 4 ). Likebolts blocks bolts 70', 70" and 70''' have external threads that threadedly engage internal threads of holes in retainingblocks 72', 72" and 72"', respectively. Also, like retainingblocks blocks 72', 72" and 72''' have a width less than, but a length greater than, the width ofopenings 52', 52" and 52''' ofupper portions 12', 12" and 12''' of elongatedstructural struts 10', 10" and 10"', respectively. - The end result is that retaining
blocks 72', 72" and 72''' are received inupper chambers 50', 50" and 50''' ofupper portions 12', 12" and 12''' of elongatedstructural struts 10', 10" and 10''' and firmly engage the free ends of hooks 26' and 28', hooks 26" and 28", and hooks 26''' and 28"', respectively. - In this embodiment, when elongated
structural struts 10' and 10" are joined by connector assembly 44', flanges 16' (not shown) and 18'abut flange 18", as shown inFigure 4 . - Connector assembly 44' can be attached to and suspended from ceiling structure by ceiling rod assembly 61' in the same manner that
connector assembly 44 can be attached to and suspended from ceiling structure byceiling rod assembly 61. - In other embodiments, a connector assembly other than connector assembly 44' can be used to join elongated
structural struts 10', 10" and 10''' in the configuration of a T-intersection. - As stated,
Figure 10 illustrates two of the elongated structural strut for ceiling grids illustrated inFigures 1 and2 and described above, elongatedstructural struts structural struts member 46x. - In this embodiment, L-shaped
member 46x is a flat member that includescenter portion 59x andintegral wings center portion 59x and (2) are oriented 90° to each other to form an "L." In other embodiments, the member that joins the elongated structural struts can be of any shape or configuration as long as it has surfaces that can be attached to the two elongated structural struts forming the grid corner. - L-shaped
member 46x can be attached to elongatedstructural struts connector assembly 44 can be attached to elongatedstructural struts wing 58x is attached to elongatedstructural strut 10x bybolt 70x and retainingblock 72x andwing 58y is attached to elongatedstructural strut 10y bybolt 70y and retainingblock 72y. Likebolts blocks bolts blocks blocks blocks openings upper portions structural struts - The end result is that retaining
blocks upper chambers upper portions structural struts hooks - As stated,
Figures 5 and 6 illustrate one embodiment of a non-structural elongated member, non-structuralelongated member 74, which can be used in a ceiling grid with the elongated structural struts of this invention. - Non-structural
elongated member 74 includesupper portion 76,web 78 andflange portion 80. While, in this embodiment of the invention,upper portion 76,web 78 andflange portion 80 are integral, in other embodiments, they can be comprised of two or more components, welded or otherwise fastened together. -
Upper portion 76 includesfloor 81 and spaced andparallel sidewalls floor 81 to form a U-shape withfloor 81.Sidewall 82 includesthreads 86 on its inner surface, andsidewall 84 includesthreads 88 on its inner surface.Floor 81 andsidewalls slot 77.Threads Figure 6 . That is, each peak ofthread 86 is diametrically opposed by a valley ofthread 88, and each valley ofthread 86 is diametrically opposed by a peak ofthread 88. -
Flange portion 80 is oriented substantially perpendicular toweb 78. The bottom surface offlange portion 80 is what is visible to occupants of the room or building space that includes a ceiling grid with one or more non-structuralelongated members 74. - As stated,
Figure 7 illustrates a pair of the non-structural elongated member ofFigures 5 and 6 , non-structuralelongated members 74' and 74", attached on opposite sides of elongatedstructural strut 10, to form intersecting and perpendicular rows of the elongated structural struts and the non-structural elongated members. Specifically, non-structural elongated member 74' is attached to one side of elongatedstructural strut 10 byconnector 90, and non-structuralelongated member 74" is attached to the opposite side of elongatedstructural strut 10 byconnector 92. - In this embodiment,
connectors connectors members 74' and 74" bybolts slots 77' and 77" of non-structuralelongated members 74' and 74", respectively. The upper arms of L-shapedconnectors upper portion 12 of elongatedstructural strut 10 byscrews - In this embodiment, the ends of
flange portions 80' and 80" are recessed from the ends ofupper portions 76' and 76" andwebs 78' and 78", as shown inFigures 5 and7 , so that the bottom surfaces offlange portions 80' and 80" of non-structuralelongated members 74' and 74" and offlanges structural strut 10 form a substantially flat surface. -
Figure 7 illustrates one way of connecting the elongated structural struts and the non-structural elongated members of this invention to form intersecting and perpendicular rows of those struts and members. In other embodiments, the elongated structural struts and non-structural elongated members can be attached using different methods/apparatus that are sufficient to maintain the elongated structural struts and the non-structural elongated members in the desired relative positions. - As stated,
Figure 8 discloses a partial ceiling grid comprised of a plurality of elongatedstructural struts 10 and non-structuralelongated members 74. The grid is attached to and suspended from a ceiling by a plurality ofceiling rod assemblies 61. - What has been described and illustrated herein are preferred embodiments of the invention with some variations. The terms, descriptions and figures herein are intended to be for illustration only and are not meant as limitations. Those skilled in the art will recognize that many variations are possible within the scope of the invention, as defined by the following claims.
- The present invention also relates to the following:
- 1. An elongated ceiling grid member having a longitudinal axis, comprising: an upper portion; a web that is a substantially vertical plate-like member having a top side edge and a bottom side edge; and a flange portion that extends substantially horizontally, wherein: the upper portion is continuous with the top side edge of the web and the flange portion is continuous with the bottom side edge of the web; the upper portion includes a floor continuous with the top side edge of the web and first and second spaced sidewalls that are continuous with and extend upwardly from the floor; the first spaced sidewall of the upper portion includes a first threaded surface and the second spaced sidewall of the upper portion includes a second threaded surface; and the first threaded surface and the second threaded surface face each other.
- 2. The elongated ceiling grid member according to
item 1, wherein the first and second spaced sidewalls of the upper portion are parallel. - 3. The elongated ceiling grid member according to item 2, wherein: each of the first and second sidewalls of the upper portion have a top end; and the top end of the first spaced sidewall and the top end of the second spaced sidewall define an opening.
- 4. The elongated ceiling grid member according to item 2 or 3, wherein each of the first and second sidewalls of the upper portion is a plate-like member.
- 5. The elongated ceiling grid member according to any of the
items 1 to 4, wherein the floor of the upper portion is substantially perpendicular to the web. - 6. The elongated ceiling grid member according to item 5, wherein the first and second spaced sidewalls are substantially parallel to the web.
- 7. The elongated ceiling grid member according to item 6, wherein the first spaced sidewall is on one side of the web and the second spaced sidewall is on the other side of the web.
- 8. The elongated ceiling grid member according to item 7, wherein the web intersects the floor of the upper portion at the approximate mid-point of the floor.
- 9. The elongated ceiling grid member according to any of the
items 1 to 8, wherein: the floor has first and second longitudinal side edges; the first spaced sidewall of the upper portion extends upwardly from the first longitudinal side edge of the upper portion; and the second spaced sidewall of the upper portion extends upwardly from the second longitudinal side edge of the upper portion. - 10. The elongated ceiling grid member according to any of the
items 1 to 9, wherein: the floor and the first and second spaced sidewalls of the upper portion form a U-shaped member. - 11. The elongated ceiling grid member according to any of the
items 1 to 10, wherein each of the upper portion, the web and the flange portion are elongated members extending substantially parallel to the longitudinal axis of the elongated ceiling grid member. - 12. The elongated ceiling grid member according to any of the
items 1 to 11, wherein the upper portion, the web and the flange portion are integral. - 13. The elongated ceiling grid member according to any of the
items 1 to 12, wherein the flange portion includes a top surface and the top surface has a longitudinal depression adjacent and parallel to the web on each side of the web.
Claims (15)
- An elongated structural ceiling grid member (10) having a longitudinal axis, comprising:an open-ended upper portion (12) formed by a floor (20) and a first set of first and second parallel and spaced sidewalls (22, 24) extending from and substantially perpendicular to the floor (20), each of the first and second parallel and spaced sidewalls (22, 24) including a lower flat wall section (23, 25) and an upper section (26, 28) that is continuous with the lower flat wall section (23, 25) and extends towards the other of first and second parallel and spaced sidewalls (22, 24), the open-ended upper portion (12) having a first opening (52) (a) opposite the floor (20) and (b) defined by the upper sections (26, 28) of the first and second parallel and spaced sidewalls (22, 24);an open-ended lower portion (14) formed by a ceiling (30) and a second set of third and fourth parallel and spaced sidewalls (32, 34) extending from and substantially perpendicular to the ceiling (30), each of the third and fourth parallel and spaced sidewalls (32, 34) including an upper flat wall section (33, 35) and a lower section (36, 38) that is continuous with the upper flat wall section (33, 35) and extends towards the other of the third and fourth parallel and spaced sidewalls (32, 34), the open-ended lower portion (14) having a second opening (56) (a) opposite the ceiling (30) and the first opening (52) and (b) defined by the third and fourth parallel and spaced sidewalls (32, 34); andfirst and second flanges (16, 18);
wherein:the open-ended upper portion (12), the open-ended lower portion (14) and the first and second flanges (16, 18) have longitudinal axes that are substantially parallel to the longitudinal axis of the elongated structural ceiling grid member (10);the floor (20) and ceiling (30) are integral; andthe first flange (16) is attached to the lower section (36) of the third parallel and spaced sidewall (32) and extends substantially perpendicular in the lateral direction to the flat wall section of the third parallel and spaced sidewall (32) and the second flange (18) is attached to the lower section (38) of the fourth parallel and spaced sidewall (34) and extends substantially perpendicular in the lateral direction to the flat wall section of the fourth parallel and spaced sidewall (34). - The elongated structural ceiling grid member (10) of claim 1, wherein the upper sections (26, 28) of the first and second parallel and spaced sidewalls (22, 24) are hooks having free ends that are located between the lower flat wall sections (23, 25) of the first and second parallel and spaced sidewalls (22, 24).
- The elongated structural ceiling grid member (10) of claim 1 or 2, wherein the lower sections (36, 38) of the third and fourth parallel and spaced sidewalls (32, 34) are hooks having free ends that are located between the upper flat wall sections (33, 35) of the third and fourth parallel and spaced sidewalls (32, 34).
- The elongated structural ceiling grid member (10) according to any one of claims 1 to 3, wherein the first and second flanges (16, 18) are elongated bars that extend laterally beyond and outside of the upper flat wall portions of the third and fourth parallel and spaced sidewalls (32, 34).
- The elongated structural ceiling grid member (10) of claim 4, wherein the lower flat wall portion of the first parallel and spaced sidewall (22) is in substantially the same planes as the upper flat wall portion of the third parallel and spaced sidewall (32) and the lower flat wall portion of the second parallel and spaced sidewall (24) is in substantially the same planes as the upper flat wall portion of the fourth parallel and spaced sidewall (34).
- The elongated structural ceiling grid member (10) according to any one of claims 1 to 5, wherein
the first flange (16) has an inner surface in substantially the same plane as the innermost surface of the third parallel and spaced sidewall (32), and
the second flange (18) has an inner surface in substantially the same plane as the innermost surface of the fourth parallel and spaced sidewall (34). - The elongated structural ceiling grid member (10) according to any one of claims 1 to 6, wherein the open-ended upper portion and the open-ended lower portion are formed by extrusion from the same stock.
- An elongated ceiling grid member (74) having a longitudinal axis, comprising:an upper portion (76);a web (78) that is a substantially vertical plate-like member having a top side edge and a bottom side edge; anda flange portion (80) that extends substantially horizontally, wherein:the upper portion (76) is continuous with the top side edge of the web (78) and the flange portion (80) is continuous with the bottom side edge of the web (78);the upper portion (76) includes a floor continuous with the top side edge of the web (78) and first and second spaced sidewalls (82, 84) that are continuous with and extend upwardly from the floor (81);the first spaced sidewall (82) of the upper portion (76) includes a first threaded surface (86) and the second spaced sidewall (84) of the upper portion (76) includes a second threaded surface; andthe first threaded surface (86) and the second threaded surface (88) face each other.
- The elongated ceiling grid member (74) of claim 8, wherein the first and second spaced sidewalls (82, 84) of the upper portion (76) are parallel;
each of the first and second sidewalls (82, 84) of the upper portion (76) have a top end; and
the top end of the first spaced sidewall (82) and the top end of the second spaced sidewall (84) define an opening. - The elongated ceiling grid member (74) of claim 8 or 9, wherein the floor (81) of the upper portion (76) is substantially perpendicular to the web (78);
the first and second spaced sidewalls (82, 84) are substantially parallel to the web (78); and the first spaced sidewall (82) is on one side of the web (78) and the second spaced sidewall (84) is on the other side of the web (78). - The elongated ceiling grid member (74) according to any one of claims 8 to 10, wherein the web (78) intersects the floor (81) of the upper portion (76) at the approximate mid-point of the floor (81).
- The elongated ceiling grid member (74) according to any one of claims 8 to 11, wherein:the floor (81) has first and second longitudinal side edges;the first spaced sidewall (82) of the upper portion (76) extends upwardly from the first longitudinal side edge of the upper portion (76); andthe second spaced sidewall (84) of the upper portion (76) extends upwardly from the second longitudinal side edge of the upper portion (76).
- The elongated ceiling grid member (74) according to any one of claims 8 to 12, wherein:the floor (81) and the first and second spaced sidewalls (82, 84) of the upper portion (76) form a U-shaped member; andeach of the upper portion (76), the web (78) and the flange portion (80) are elongated members extending substantially parallel to the longitudinal axis of the elongated ceiling grid member (74).
- The elongated ceiling grid member (74) according to any one of claims 8 to 13, wherein the upper portion (76), the web (78) and the flange portion (80) are integral.
- The elongated ceiling grid member (74) according to any one of claims 8 to 14, wherein the flange portion (80) includes a top surface and the top surface has a longitudinal depression adjacent and parallel to the web (78) on each side of the web (78).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/288,551 US9771718B1 (en) | 2016-10-07 | 2016-10-07 | Strut with non-structural infill |
Publications (1)
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EP3306005A1 true EP3306005A1 (en) | 2018-04-11 |
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ID=59886569
Family Applications (1)
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EP17194567.8A Withdrawn EP3306005A1 (en) | 2016-10-07 | 2017-10-03 | Strut with non-structural infill |
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US (2) | US9771718B1 (en) |
EP (1) | EP3306005A1 (en) |
AU (1) | AU2017239507A1 (en) |
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CN105369898B (en) * | 2015-08-25 | 2017-10-13 | 河南奥斯派克科技有限公司 | Thin-wall channel assembled house based on BIM |
US10526786B2 (en) * | 2017-03-23 | 2020-01-07 | Harsoyo Lukito | Cross-strut |
US9920525B1 (en) * | 2017-04-12 | 2018-03-20 | Usg Interiors, Llc | Acoustical baffle panel system |
US10808401B2 (en) * | 2017-06-09 | 2020-10-20 | Air Distribution Technologies Ip, Llc | Ceiling support systems |
US10174501B1 (en) * | 2017-09-06 | 2019-01-08 | Usg Interiors, Llc | Metal baffles |
US11332933B2 (en) * | 2018-03-23 | 2022-05-17 | Harsoyo Lukito | Cross-struts for beam assemblies |
US20220154457A1 (en) * | 2020-11-13 | 2022-05-19 | Instyle Contract Textiles Pty Ltd | Mounting system for an acoustic baffle system |
US11814840B2 (en) * | 2022-04-14 | 2023-11-14 | Polargy, Inc. | Ceiling grid structural member and ceiling grid assembly |
CN115450369A (en) * | 2022-10-10 | 2022-12-09 | 浙江奥华电气有限公司 | Aluminum honeycomb bare board ceiling structure and mounting method thereof |
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Also Published As
Publication number | Publication date |
---|---|
AU2017239507A1 (en) | 2018-04-26 |
US20180100305A1 (en) | 2018-04-12 |
US9771718B1 (en) | 2017-09-26 |
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